Frame construction.



F. B. UPTON.

FRAME consmncnou.

APPLICATION FILED JUNE 15, 1910. 1,022,448. Patented Apr. 9, 1912.

2 SHEETS-SHEET 1.

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P.B.UPTON.

FRAME CONSTRUCTION.

APPLICATION FILED JUNE 15, 1910.'

Patented Apr. 9, 1912.

2 SHEETS-SHEET 2.

CDLUMBIA PLANOGRAFH 50., WASHINGTON D c FRANK B. UPTON,OF-OI-IA'ITANOOGA, TENNESSEE, ASSIGNOR OF ONE-FOURTH TO WILLIAM' E.HERON, OF OI-IATTANOOG-A, TENNESSEE.

FRAME CONSTRUCTION.

To all whom it may concern:

Be it known that I, FRANK B. UPTON, a citizen of the United States, anda resident of the city of Chattanooga, in the county of Hamilton andState of Tennessee have invented a new and useful Improvement in FrameConstructions, of which the following is a specification. 1

This invention relates to metal frame constructions for bedsteads andother structures.

It has for its principal objects to secure a simple, inexpensive, rigidand durable connection between a tubular member and the end of alaterally disposed frame member, and to secure certain advantageshereinafter more fully appearing.

The invention consists in the parts and in the arrangements andcombinations of parts hereinafter described and claimed.

In the accompanying drawings which form part of this specification andwherein like symbols refer to like parts wherever they occur, Figure 1is a fragmentary view, partly in elevation and partly in section,showing the manner of constructing a frame according tomy invention;Fig. 2 is a fragmentary plan view; Fig. 3 is a fragmentary perspectiveview of the mold member which is inserted in they tube; Fig. 4 is asectional view on an enlarged scale showing the cooperative relation ofthe mold members and the parts to be joined together; F ig. 5 is a viewpartly in longitudinal section and partly in side elevation showing amodification of the mold device for the interior of the tube; Fig. 6 isa view similar to Fig. 5 showing the mold device in collapsed condition; Fig. 7 is a transverse section through the frame tube and castmetal joint, showing the mold members in the position they occupy inFig. 5; Fig. 8 is a longitudinal section showing a further modificationof the device; Figs. 9 and 10 are transverse sections of themodification illustrated in Fig. 8, showing the manner in which the molddevice is applied and removed; and Fig. 11 is a fragmentary perspectiveview of the mold member shown in Figs. 8 to 10, inclusive.

In the drawings, a portion of a frame is illustrated as comprising atubular side member 1 and lateral or cross members 2 connected thereto.The tube 1 may be of round or square section and the members 2 may beeither square or round, and solid or Specification of Letters Patent.

Application filed June 15, 1910.

Patented Apr. 9, 1912.

Serial No. 566,905.

tubular, as desired; or the members 2 may be of angle iron section ifdesirable.

The tube 1 is provided with openings 3 in its side wall at the point orpoints where the connections are to be made. A removable andindestructible chill or mold member 4 having depressions 5 therein isinserted into the tube 1 so that saiddepressions register with theopenings 3. The area of the depressions 5 in the mold member is greaterthan that of the respective openings 3 in the tube 1. As shown in Figs.1 to 4, inclusive, the mold member 4; is held securely in place againstthe adjacent side of the tube by a securing wedge 6 which is insertedbetween the mold member and the opposite side of the tube. The oppositeouter faces of the members 4 and 6 are straight and parallel with eachother and preferably exact counterparts of the interior of the tubeadjacent to the openings 3 and their cotiperating inner faces aretapered correspondingly so as to be counterpart-s.

A removable chill or mold box 7 is fitted over the outside of the tube 1and it is arranged so that it surrounds and engages the end of themember 2 and supports the same in proper position with respect to thehole 3 in the tube 1, in which position the member 2 is to be secured tothe tube. This chill or mold box 7 may be of any suitable construction.As shown in the drawings, it comprises two half sections 7 7 havingdownward extensions 8 which are pivotally connected to the oppositeends, respectively, of a cross connecting member 9 which fits againstthe side of the tube 1 opposite to that on which the mold box proper ismounted. The half sections 7 7 are secured together by hooks 10 or anyother suitable securing devices. The mold box is provided with a spruehole 11 through which molten metal is poured into the mold.

The body of metal which is poured into the mold flows into and fills thepocket 5 and thereby forms an interlocking retaining button or head 12inside the tube 1 integrally on a block of metal 13 which surrounds andunites with the end of the member 2 and also unites with the tube 1. Bythis construction, a rigid and durable connection is made which is muchlighter than if the metal casting were extended around the outside ofthe tube 1 to secure a bond therewith. It is, of course, understood thatthe interior of the external mold box or chill and sides and bottom ofthe cavity in the removable mold member which is placed in the tube, arecoated with graphite or otherwise suitably treated to prevent the castmetal from fusing therewith.

In Figs. 5 to 7 inclusive, a modification of the mold member which isinserted in the tube 1 is illustrated as comprising a flat rectangularbar 1 having pockets or depressions 5 therein. This member 45 ispivotally connected by parallel links 14 to a parallel securing bar 15.By this construction, a collapsible device is provided which may bereadily inserted into the tube 1 in collapsed condition, as shown inFig. 6, and then expanded into the position shown in Fig. 5. The devicemay be readily removed after the castings have been completed by movingthe member 15 endwise and permitting the member P to drop free of thebutton or head 12 of the casting inside the tube 1.

As shown in Figs. 8 to 10, inclusive, the tube 1 is cylindrical. In thismodification, a segmental bar l is provided with notched portions orgains 5", and the rounded portion of the bar corresponds to the interiorcurvature of the tube or, in otherwords, is substantially a counterpartthereof. In the bottom of a bar 4 is formed a longitudinal groove 16having a rounded bottom and flaring sides. A bar 17 having rounded edgeportions is arranged so that one edge can be seated in the groove in thebottom of the bar 49 and its opposite edge bears against the bottom ofthe lowermost portion of the inner side of the tube 1 when said bar isset on edge as shown in Figs. 8 and 9, so as to hold the mold member 4in position in the tube 1. In applying the device, the bar or member 1"is inserted into the tube 1 so that the respective notches or gains 5register with the openings 3 in the tube. The bar 17 is then inserted inangular position as shown in Fig. 10 and then rocked to the verticalposition shown in Fig. 9. After the castings have been completed, thebar 17 is removed to permit the member a to drop free of the button 12on the casting 13 and the member is then readily removable from the tube1.

Obviously the device admits of considerable modification withoutdeparting from my invention. Therefore, I do not wish to be limited tothe specific construction and arrangement shown.

What I claim is:

1. The combination with a tubular metal frame member having an openingin its wall at its point of connection with a lateral frame member, of acollapsible and indestructible mold member insertible and removable insaid tube and having a recess therein approximately coincident with theopening in the wall of said tube, substantially as and for the purposeset forth.

2. The combination with a tubular metal frame member having an openingin its wall at its point of connection with a lateral frame member, ofan indestructible mold member insertible and removable in said tube,said mold member having a portion which is a counterpart of the insideof the tube adjacent to said opening therein, and said mold memberhaving a recess approximately coincident with said opening, and acollapsible device for releasably holding said mold member in contactwith the wall of said tube.

3. The combination with a tubular metal frame member adapted forconnection with the ends of lateral frame members, said tube havingopenings in its wall or walls at its places of connection with therespective lateral frame members, of a mold member insertible andremovable in said tube and having a series of recesses thereinapproximatelycoincident with the respective openings in the wall orwalls of said tube, and a collapsible device adapted to hold said moldmember in operative position in said tube, substantially as and for thepurposes specified.

4. The combination with a tubular metal 1 frame member having an openingin its wall at its point of connection with a lateral frame member, of acollapsible mold member having a portion which is a counterpart of theinterior of said tube adjacent to said opening therein, and said moldmember having a recess in said counterpart portion approximatelycoincident with the opening in the wall of said tube.

5. In a metal frame construction, the combination with a tubular memberhaving an opening in its wall and a lateral member to be secured to saidtubular member at the place where the opening therein is located, of amold box detachably secured to said tubular member and to said lateralmember so as to position said members with respect to each other and toform a mold external of said members, a removable member insorted insaid tubular member and having a mold pattern adapted to cover theopening in said tubular member so as to cooperate with said externalmold to complete the mold for an interlocking cast metal connectionbetween said tubular member and said lateral member, and releasablemeans for holding said removable member in engagement with said tubularmember.

6. In a metal frame construction, the

combination with a tubular member having said tubular member and to saidlateral member so as to position said members with respect to each otherand to form a cast metal connecting body between said tubular member andsaid lateral member, and a removable member inserted in said tubularmember and having a pocket arranged and adapted to register with theopenings in said tubular member and to cooperate with said external moldwhereby an integral interlocking portion is formed on said cast metalconnecting body inside of the tubular member.

7. In a metal frame construction, the combination with a tubular memberhaving an opening in its wall and a lateral member to be secured to saidtubular member at the point where the opening therein is located, of aremovable mold member inserted in said tubular member, said removablemold member having a pocket arranged and adapted to register with theopening in said tubular member so as to form an interlocking portion onthe inside of said tubular member integrally with a cast metalconnecting body which is external of the tubular member.

8. The combination with a tube having an opening in its wall, of anindestructible mold element insertible into said tube endwise thereof,said mold element having a recessed portion approximately coincidentwith the opening in the wall of said tube, and means for releasablyholding said mold element with its recessed portion in cooperativerelation to the wall of the tube adjacent to the opening therein so asto constitute a mold box.

Signed at Chattanooga, Tennessee, this 1st day of June, 1910.

FRANK B. UPTON.

WVitnesses L. Gr. BROWNE, H. T. SHEL'roN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

